My unabridged dictionary says that a taw is a shooter in the game of marbles. It is also the line from which a game of marbles begins. So to come to taw means to come to the starting point of something.

There are other definitions unrelated to the above. For example, in making cloth or leather, it means to make the product hard. It's also a variant of the Hebrew letter 'tav.'

Meanwhile, I wanna know what 'link and law' (first post) is supposed to mean.